Slitting means



ugn 31 1926. l

R. Mec. JoHNs'roNE sm'r'rme mms Filed may a, 1923 2 sheets-sheet 1` I A NV NTO/e @A4/cc' sy l 4 mms y Patented Aug. 31, 1925.l

y UNITED s'rAjTE's PATENTLo 1,597,806? FFI CE.

ROBERT MCG. JQHNSTONE, F :ROSELLE PARK, NEW JERSEY, ASSIG-NOR TOCAMERON' MACHINE COMPANY, BROOKLYN,

vmaw YORK, A CORPORATION or NEW YORK.

SLITTING- MEANS.

' Application fuea may 2, msj serial No. 636,134.

This invention relates to slitting means and is more particularly designed as an improvement upon the construction disclosed in the application of 'Cameron and Birch for t slitting means, led August 25, 1920, Ser.

".One of the difliculties encountered in score -cutting mechanism is the chattering of the cutters due to the vibration of the machine,

'l0 and this condition is especially found heavy duty machines. This chattering is du'e to the fact that heretofore the cutter support-ing lever was relatively cumbersome being made of c ast iron and therefore when this lever received an o to vibration, it would tend either to continue to leave the backing-roll or not respond quickly enough to its spring pressure to followthe backing roll on thel reboundV thus causing a hammering or pounding. The main object and feature of this 1n`' provide means whereby this difbe overcome and the invention consists of the features of construction, a preferred embodiment of which is disclosed in the specificationand accompanying drawings. A

In said drawings:

' Fig. lis a fragmentary View in rear elevation of a slitting device. embodying the invention'.

Fig.l 2 isa fragmentary vertical sectional view of parts of a, slitting and winding machine showing the slitting device of my in'- vention in side elevation. v

Fig. 3 is afragmentary view in frontelevati'on of a slitting device embodying the invention.

ventionis to ficulty may Fig. 4 is a view substantially similar to.

Fig. 2 but on an enlarged scale.

Fig. 5 is a view substantially similar to Fig. f3 but onan 'enlarged v-scale and with parts broken away and in section.

1 indicates a score cutter that actsagainst a.' backing roll which may be either one of herein disclosed, it is a below the front winding drum 3.

Preferably, a rocking support 4 and a car--l rier 5 transversely adjustable on the rockin support-are used as supporting elements o the. score cutter device, cutter supporting lever 6 being mounted at its lower end on a pivotal support 7 formed by 'the carrier. Lever 6 consists of two thin cheek plates 8 of utward impulse, due

' versely so that the holder can bebrought Ja;

the winding drums but, preferably and as separate roll 2 just steel connected by:blocks`9, the cutter being rotatably mounted between the cheek plates, and one block being arranged above and the otherA below the cutter. Pivotal support 7 of carrier 5 consists of two bearings as shown and the lower' block is provided with two pins 10 that rest in the bearings. Carrier 5 may be of any suitable material such as cast iron. Cutter supporting lever 6 is arranged in an upright position and secured to its lower end, preferably on the lower `block and at a point below itsvpivotal support, is a spring means 11 thatbears against tail 12 of the carrier to thereby press the cutter against the backing roll. Mounted on lever 6 is a pan 13,'prefcrably of aluminum, containing Water, oil or other substance, .and 14 is a wick extending from said pan up between the lower block and thecutter. ln some 'cases it is desirable to use a separating de- 'I5 vice that engages between slitted sections l5 before winding. ln this case, a separating bracket 16, preferably of aluminum, is pivotally mounted at- 17 at the upper end of lever 6. A handle 18 also of aluminum is 80 employed to turn this bracket into a` forward or a rearward position, and a spring 19 anchored at 20 on they lever holds the bracket in either its retracted or advanced position as .it will be seen that the spring passes over center 17 when the bracket is adjusted. Carried by the bracket is a separator holder 21 secured in position by bolt 22 passing through slots 23 which latter is elongated transinto alinement with the slit between a cent sections. The bracket carries separator blade 24 held in position by screw 25.- j .The cutter is brought into and out of engagement with the v'backing roll by turning rocking support 4 Iand the separator is thrown in and handle 18.V A

By reason of th'e light construction of the chattering and hammering is to a large extent obviated.

I claim: i Y

1. Slitting means comprising: av backing roll, a score cutter, means for mounting the 105 score cutter including two cheek plates, two blocks, one above and one below .tlie cutter, connecting the cheek plates, a pivotal sup. port engaging the lower block, and a spring member, for pressing the cutter against the 110 out of action by means of y l cutter supporting lever,fth'e objectionable 100' backing roll, connected to the lower block. 2. Slitting means comprising: la backing roll, a score. cutter, a pivotal support, an upright cutter supporting lever mounted at its lower end on the pivotal support, and a spring member, for pressing the cutterl against the backing roll, connected to the i lower end of the cutter supporting lever. v

3. Slitting means comprising: a backing roll, a score cutter, a pivotal support, an upright cutter supporting lever mounted at its lower end on the pivotal support, and a spring member, for pressing the cutter against' the backing roll, connected to the lower end of the cutter supporting lever below its pivot point.

4. Slitting means comprising: a backing roll, a score cutter, an upright cutter supporting lever consisting of two cheek plates, one above and one below the cutter, connecting the cheek plates, a. pivotal support engaging the lower block, and a spring member, for pressing the cutter against the backingroll, connected to the lower block.

- 5.v Slitting means comprising: a backing roll, a score cutter, an upright cutter supporting lever consisting of two cheek plates, one above and one below 'the cutter, connecting .the cheek-plates, a pivotal support engaging the lower block, and a spring member, for pressing the cutter against the backing roll, connected to the lower block below its point of pivotal support.

6. Slitting means comprising: a backing roll, a score cutter, a pivotal support, an upright cutter supporting lever mounted at its ilower end on the pivotal support, a spring' member, for pressing the cutter against' the' backing roll, connected to the lower end of the cutter supporting lever, a pan, containing liquid, mounted at the lower end of the lever, and a wick from said pan extending above the lower block and below the cutter Signed at Brooklyn in the county of V Kings and State of New York this 23 day of April, 1923.

ROBERT Moo. JoHNsToNn; 

